Utilities Tax Deduction for Self-Employed Taxpayers
In short: Self-employed individuals can deduct electricity, gas, water, and other utility expenses for a separate business location on Schedule C Line 25.
Deducting Utilities for a Separate Business Location
If you rent or own a dedicated office, studio, warehouse, or retail space separate from your residence, all electricity, water, gas, and trash collection services used exclusively for that location are fully deductible. According to IRS Pub 535, you report these direct operating costs on Schedule C, Line 25. Keep every monthly bill and proof of payment in your records to substantiate the deduction. If a utility serves both your business and another entity, you can only deduct the portion directly related to your business operations.
How Home Utilities Work Through the Home Office Deduction
You cannot claim standard residential utility bills directly on Line 25 if you operate a home office. Instead, home-related electricity, gas, and heating oil are handled entirely through the home office deduction on Form 8829 or via the simplified option. The IRS requires you to calculate the business percentage of your home based on square footage. Only that specific calculated percentage of your total household utility costs can be written off. Mixing these categories by putting residential bills directly on Line 25 creates reporting errors.
Handling Business Phone and Internet Services
Telephone and internet connectivity expenses occupy a unique space in self-employed tax preparation. A dedicated second phone line installed solely for business use at your workplace goes straight to Line 25. Alternatively, your primary business phone service and mobile data expenses can often be claimed on Line 27a for other miscellaneous business expenses. If you use your personal smartphone for client calls, you must calculate the exact business-use percentage and deduct only that portion, ensuring you never write off 100 percent of a personal device.
Tracking and Organizing Utility Expenses for Tax Season
Accurate recordkeeping ensures you capture every valid business expense without risking compliance issues. Because utility billing fluctuates monthly, keeping digital copies of statements prevents lost paperwork. Proofly functions as an AI receipt scanner that organizes expenses for tax time, helping you categorize utility bills alongside other overhead costs. As you prepare for the 2026 tax filing deadlines—with quarterly estimated payments due on April 15, June 15, September 15, and January 15, 2027—having clean records makes Schedule C preparation much smoother.
Related
What the Proofly receipt scanner does — and doesn’t
Does
- Reads merchant, date, line items, tax and payment method from a photo, with a confidence meter so you can correct it before saving
- Keeps personal and per-company receipts separate
- Maps business expenses to Schedule C lines (meals already at 50%)
- Exports an audit pack: every receipt image plus a ledger, as PDF, and CSV for QuickBooks or Xero
- Has a manual mileage log priced at the IRS rate for each trip’s date
Doesn’t
- File your taxes or give tax advice
- Sync live with QuickBooks or Xero (it’s CSV export)
- Pull transactions from your bank automatically
- Track your drives by GPS
- Guarantee how an audit turns out
Frequently asked questions
Where do I report utility expenses on my tax return?
Utilities for a separate business location are reported on Line 25 of Schedule C under IRS Pub 535 guidelines.
Can I deduct my home electricity and gas on Line 25?
No. Home utilities must be claimed through the home office deduction rather than directly on Line 25.
Are internet and phone bills considered utilities?
Dedicated business phone lines can be reported on Line 25 or Line 27a, while mixed-use phone and internet bills require a business-use percentage calculation.
What records do I need to keep for utility deductions?
You should retain monthly billing statements, proof of payment, and any calculations showing how you allocated mixed-use expenses.
Sources
This guide summarizes IRS guidance as of October 28, 2026 for planning purposes. It isn’t tax advice — confirm your situation with IRS.gov or a qualified tax professional.